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drm/i915/guc : GEM_BUG_ON on invoking GuC reset function 

Instead of returning -EINVAL, GEM_BUG_ON when GuC reset is invoked for
platforms not supporting as we don't expect to invoke it.

v2: re-wording commit message and subject (Sagar)

Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1514928025-29659-2-git-send-email-sujaritha.sundaresan@intel.com
This commit is contained in:
Sujaritha Sundaresan 2018-01-02 13:20:25 -08:00 committed by Chris Wilson
parent c24f0c1de4
commit 6f25d0be18
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/i915/intel_uncore.c
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@ -1936,8 +1936,7 @@ int intel_reset_guc(struct drm_i915_private *dev_priv)
{
int ret;
if (!HAS_GUC(dev_priv))
return -EINVAL;
GEM_BUG_ON(!HAS_GUC(dev_priv));
intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
ret = gen6_hw_domain_reset(dev_priv, GEN9_GRDOM_GUC);